90006494 has 12 divisors (see below), whose sum is σ = 136444464. Its totient is φ = 44529984.

The previous prime is 90006493. The next prime is 90006503. The reversal of 90006494 is 49460009.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90006494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90006491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16427 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (11370372).

Almost surely, 2^90006494 is an apocalyptic number.

90006494 is a deficient number, since it is larger than the sum of its proper divisors (46437970).

90006494 is an equidigital number, since it uses as much as digits as its factorization.

90006494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 90006494 is about 9487.1752381834. The cubic root of 90006494 is about 448.1512530048.

The spelling of 90006494 in words is "ninety million, six thousand, four hundred ninety-four".